Assessment of the state of the art of technologies for the processing of digestate residue from anaerobic digesters

Anaerobic digestion is widely used as an important source of renewable energy. With the increasing number and capacity of biogas plants also, adequate treatment technologies for whole digestate – the residue from anaerobic digestion – are gaining attention. In this study the state of the art of digestate processing is analysed, and currently used treatment schemes and the various technological processes involved are evaluated. The study combines data and experiences from existing large-scale digestate processing facilities in Austria, Germany, Switzerland and Italy, as well as know-how from technology providers and relevant research projects. However, the field of digestate processing is still quite new and little detailed information about the performance of different technologies at industrial scale is available. Digestate processing is gaining importance since digestate utilisation can become an important bottleneck when increasing biogas production. In addition, the production of renewable fertiliser from digestate is increasingly of interest to replace fossil fertilisers. This study is the first profound attempt to establish an assessment of the state-of-the-art technologies in use.

Related articles

Summary
Biorem`s biogas desulphurization product is providing very high removal efficiencies at a landfill site in Quebec. Despite the highly variable concentrations and low winter temperatures, the system has achieved an average removal efficiency of 97%, and has maintained outlet nydrogen sulphide concentration below target consistently. As a result, the customer has realized a significant cost reduction over the previously used chemical scrubbing process, and site environment has improved.
The biological...

Due to increasing awareness on the impact of fossil fuels on the environment, and heavier taxes on carbon emissions there is a worldwide effort to seek renewable sources of energy – alternative energy sources that increase energy efficiency and security.
A renewable source that’s gained significant attention in recent years is biogas, one of the most established renewable energy sources which is capable of producing heat, steam, electricity and vehicle fuel. [1]
Biogas: The Future of Renewable...

Earths is sick and needs to be fixed. This simple message is enough for every body alive to be involve in fixing our home. Constatnt pollution of our evironment by fossil fuels ,humaan activities have degraded our ozone, allowing greenhouse gases to deplet the ozona and occupy our atmosphere.The damages caused by fossil fuel can not be overemphasized,as more and more problems and global warming is emerging on daily basis . Osmartex & Co Nig Ltd is investing in biogas plant construction that would provide up...

Over the past few years, more and more companies have woken up to the financial and environmental benefits to be gained by making the most of their organic waste streams. In fact, the anaerobic digestion (AD) industry – which converts millions of tonnes of food, sewage and farm waste into renewable energy (biogas) and biofertiliser – has been one of the UK’s biggest success stories in recent times.
DMT published a new article on their website called Busting the Biomethane Myths In the AD sector...

On the surface, wastewater treatment operations don’t appear to be handling precious material. But these facilities are actually processing a great deal of value every day.
Sludge, a byproduct of wastewater treatment, turns out to be an entity worth cherishing.
“Depending on treated sludge quality, the final product can be land applied, landfilled, incinerated, or composed,” according to Biomass Magazine.
While there is an opportunity to sell sludge as fertilizer for agricultural use, or at...

Customer comments

No comments were found for Assessment of the state of the art of technologies for the processing of digestate residue from anaerobic digesters. Be the first to comment!

Add your comment

Great! comment successfully added!

Contact

Your message:

Your email

Your first name

Your last name

I would like to receive periodic email updates and special offers from select suppliers.